2-Stage Keychain Picnic Sharpener by Wusthof. Compact-size sharpener to sharpen your knives on the go. It is lightweight, portable, comes with a lanyard hole, and has non-slip rubber feet for added safety. Excellent for use on all types of knives. Made in China. Coarse notch features carbide rods that remove a small amount of steel to apply a new edge Fine notch features ceramic rods that realign the edge and are meant for regular maintenance between sharpening or for fine honing The perfect picnic, camping and travelling companion, this small keychain-sized knife sharpener is perfect for maintaining your blades while on the go. Measures: 1" x 3" Weight: 1 oz.